openapi: 3.0.3
info:
  title: GPTZero Batch Detection API
  description: AI content detection API for analyzing text to detect AI-generated content.
  version: 1.0.0
  x-jentic-source-url: https://gptzero.stoplight.io/
  contact: {}
servers:
- url: https://api.gptzero.me/v2
security:
- ApiKeyAuth: []
tags:
- name: Detection
  description: AI content detection
paths:
  /predict/text:
    post:
      tags:
      - Detection
      summary: Analyze text
      operationId: analyzeText
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TextAnalysisInput'
      responses:
        '200':
          description: Analysis complete
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AnalysisResult'
      description: Analyze text
  /reports:
    get:
      tags:
      - Detection
      summary: List reports
      operationId: listReports
      parameters:
      - name: startDate
        in: query
        schema:
          type: string
          format: date
      - name: endDate
        in: query
        schema:
          type: string
          format: date
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Report'
      description: List reports
  /reports/{reportId}:
    get:
      tags:
      - Detection
      summary: Get report
      operationId: getReport
      parameters:
      - name: reportId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Report'
      description: Get report
components:
  schemas:
    Report:
      type: object
      properties:
        id:
          type: string
        documentCount:
          type: integer
        averageGeneratedProb:
          type: number
          format: float
        classifications:
          type: object
          properties:
            human:
              type: integer
            ai:
              type: integer
            mixed:
              type: integer
        createdAt:
          type: string
          format: date-time
    TextAnalysisInput:
      type: object
      required:
      - document
      properties:
        document:
          type: string
          description: Text to analyze
        multilingual:
          type: boolean
          default: false
    AnalysisResult:
      type: object
      properties:
        id:
          type: string
        documentId:
          type: string
        completely_generated_prob:
          type: number
          format: float
          description: Probability that text is completely AI-generated
        average_generated_prob:
          type: number
          format: float
          description: Average probability across sentences
        overall_burstiness:
          type: number
          format: float
        perplexity:
          type: number
          format: float
        sentences:
          type: array
          items:
            type: object
            properties:
              sentence:
                type: string
              generated_prob:
                type: number
                format: float
              perplexity:
                type: number
                format: float
        classification:
          type: string
          enum:
          - human
          - ai
          - mixed
        createdAt:
          type: string
          format: date-time
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key